420 MELASTOMACEZ. 
10. RHEXTA. 
Rhewxia, Linn. Gen. Plant. n. 468; Benth. et Hook. Gen. Plant. i. p. TAT ; Triana in Trans. Linn. 
Soc. xxvii. p. 61. 
Herbs or undershrubs. Six species, inhabiting the eastern States of North America. 
1. Rhexia fragilis, Bert. Fl. Guat. p. 16. 
GuateMaa (Velasquez). | 
2. Rhexia glandulosa, Bert. Fl. Guat. p. 15. 
GuaTEMALA (Velasquez). | | 
Triana does not quote. these names; and the plants doubtless belong to some other 
genus. 
; 11. MONOCHATUM. 
Monochetum, Naud. Ann. Sc. Nat. sér. 8, iv. p. 48; Benth. et Hook. Gen. Plant. i. p. 747 ; Triana 
in Trans. Linn. Soc. xxviii. p. 62. | 
There are twenty-four shrubby species described, distributed from North Mexico, 
through Central America and the States of Colombia, to Peru. 
1. Monochetum alpestre, Naud. in Ann. Sc. Nat. sér. 3, iv. p. 50, and xiv. p. 164. 
Monochetum ensiferum, Bot. Mag. t. 5182, nec Naud. 
Sovra Mzxico, woods at 8000 feet, Cordillera of Oaxaca (Galeotti, 2930), Pelado and 
Vagueria del Jacal, 10,000 feet (Liebmann). Hb. Kew. 
2. Monochetum bracteolatum, Triana in Trans. Linn. Soc. xxviii. p. 64. 
Monochetum humboldtianum, Seem. nec Kth. 
Sout Mexico, Dos Puentes (Liebmann); Panama, Boquete (Seemann, 1668). Hb. 
Kew. | | 
3. Monochetum calcaratum, Triana in Trans. Linn. Soc. xxviii. p. 63. 
Monochatum myrtoideum, Seem. Bot. Voy. ‘ Herald,’ nec Naud. 
Norrn Mexico, Sierra Madre (Seemann, 2173); Sourn Mxxico, Oaxaca (Ghiesbreght, 
219), Cordillera of Guchitapec (Berlandier, 997). Hb. Kew. 
4, Monochetum deppeanum, Ch. et Schl. in Linnea, v. p. 566, sub Arthro- 
stemmate. 
Monochetum triplinerve, Naud. 
SoutH Mexico, Totutla, Vera Cruz (Linden, 1293); rocks at 4000 feet (Galeotti, 
2909), Dos Puentes (Liebmann); Guatemaua (Friedrichsthal). Hb. Kew. 
5. Monochetum myrtoideum, Naud. in Ann. Sc. Nat. sér. 3, xiv. p. 164. 
Sour Mexico, without any exact locality (Bates)—CoLomBia. Hb. Kew. 
6. Monochzetum pulchrum, Dene. in Revue Horticole, 1848, p. 101, fig. 6. 
Monochetum pulchellum et plumosum, Naud. 
Sours Mexico, Orizaba (Botteri, 903 ; Miller, 906), San Cristobal (Bourgeau, 3238). 
Hb. Kew. 
